Sliding window.



0. STURMANN" & A. MOLL. v SLIDING WINDOW.

PPPPPPPPPPPPPPPPP EB.17,'1911.

Patented Sept. 5, 1911. 2 EEEEEEEEEEEE 1.

c. STURMANN & A. MOLL.

SLIDING' WINDOW. APPLICATION FILED 1313.11, 1911.

Patentd Sept. 5,1911. 2SHEETSSHEET 2.

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1H. my. 021% wnw CARL STU'BHANN AND ALEXANDER MOLL, 0F DUSSELDORF, GERMANY.

SLIDING wnmow.

Specification of Letters Patent.

Patented Sept. 5, 1911.

Application filed February 17, 1911. Serial No. 809,174.

' To all whom it may concern.

Be it known that we, CARL STilRMANN and ALEXANDER MoLL, subjects of the German Em eror, and residing at 23 Bilkerstrasse, usseldorf, and 23 Immermannstrasse, Dusseldorf, Germany, respectively,

have invented certain new and useful Im- O provements in Sliding Windows, of which the following is a specification.

The present invention relates to a sliding window, the sashes of which are moved by means of metallic guide straps into their upper and lower position respectively and which may for cleaning purposes be swung toward the inside of the room, andtheguide and hinge members of which are made of metal independently of the wood work of the window, so thatthe window can be quickly and easily constructed.

The invention consists in that the sidebars of the window are fitted with metallic guide bars,'of which those on one side of the window are adjustable in the respective sidebars, and admit of the sashes swinging around the other guide bars toward the inside-of the room, after they have been dis- .connected from the adjustable guide-bars.

The invention furthermore consists in certain constructional details, which relate to the combined guide and hinge straps as shall be hereinafter more fully described and be specified in the claims.

In the accompanying drawing Figure 1. is a front view of the improved window, the two sashes of which can slide in a vertical direction and swing toward the inside of the room. Fig. 2 is a vertical longitudinal section through the window along the line AB in Fig. 1. Fig. 3 is a transverse section along the line C- -D in Fig. 1 when both sashes are lowered. Fig. 4 is a similar section with the guide and sashes straps of a somewhat modified form. Fig. 5 is a vertical longitudinal section along the line EF in Fig. 3 and Fig. 6 is a vertical longitudinal section along the line GH in Fig. 5.

Similar letters of reference indicate the same parts in the different figures of the drawings.

As shown in the drawings theupper sash a and the lower sash b of the window are both guided in the window frame 0, which bead k of the the outercurve k is provided on one side with boxes d closable by a front strip, in which the balance weights e move. The latter are connected to the sides of the sashes by means of cords f running over rollers provided at the upper right hand corner of the window frame. n the sides of the weight boxes the window frame consists of of which is intended to one sash, and'to the corners combined guide and hinge lying in different planes are connected, which receive the hinge strap 70 secured to the side of the sash.

. The guide member 71. consists of a metallic bar of angular section, with unequal sides, the longer side h of which is secured to the front of the posts 9 and the shorter side of which, 72. terminates in a beaded enlarge ment k of circular section-and is turned toward the inside. 'The guide member 2' consists of a metallic bar with a center piece 2' of approximately the shape of a quadrant and side pieces 71 and i vertically arranged of which the members It, i,

to the said quadrant and extending therefrom two side-bars g, each serve as a guide to in the form of flanges, of which the one flange i enters into the center piece and is secured to the inside of side-bar 9, while the other flange i is secured to the point of the side-bar r and is in such a manner riveted to the side k of the guide member k, that only a narrow gap equal to the thickness of a hinge strap remains between its end toward the shorter side 72. of the latter and the head 72. on the guide member 72., and the center of curvature of the center piece '5 of the bar 2' coincides with the center of the guide bar 72.. The hinge-strap consists of a metallic bar of angular section with unequal sides, the longer side k of which is secured to the side of the sash, whereas the shorter side 76 which is guided in the slot between the two guide bars h, z is bent clo'se to its base toward the outside and thickened shortly before its end and bent inwardly in a circular curve, so that outer curve of the first bend it fits like a hinge on the head 71. of the guide bar It and of the second bend has the same center of curvature as the first one and bears against the uniformly curved central part c" of the guide bar 2'. In consequence of such arrangement and construcand lowered in the former,

swungzaround about a right angle toward the inside for cleaning purposes, when the tion of the guide bars h, and. the hinge strapslc theashes may not only be raised but also be guide bars on .the other side of the sashes of the window have been disengaged. On the sashes being swung inwardly, the bands is of straps k. will strike against the-inwardly projecting end of the flanges i of the guide bar a and retain the sash, as is clearly shown in Fig. 3.

The guide bars, which are fitted to the sides of the sashes a, b o posite to the guide bars h, icons'ist of two at iron straps l, m of which the upper one is rigidly, and the lower one adjustably held in longitudinal slots m of the respective side-bar 9. These guide bars project along their entire length from the side of the side-bars and engage with the projecting part in corresponding I grooves m in the sashes and give the latter together with the guide bars h, ion the opposite side thenecessary guidance in the window frame and the necessary security against .the sashes swinging accidentally out of the frame. For disengaging the guide barsym from the grooves m in the sashes an ear m has been riveted to the bars m attop and bottom and fitted with a pin m, on which a nut nwith a slottedhole n engages, which nut it may be-moved by means of a short I shaft rotatably journaled in a recess in the respective side-bar g in an inside transverse bar 0 and in an outer sleeve 0 which shaft is for the said purpose carried through a slotted holem and terminates on the outside of the side-bar g in a square end, on which the corresponding socket of a handle or the like can be fitted. The short shaft for the rail m of the upper sash is jour- I naled below the shafts p for the rail m of the lower sash. The lugs 01. have extensions 10. which strike against the stop pin n of the transverse bars 0, soas to limit thereby their stroke. When the sash is to swing toward the inside of the room, it must first be moved into its lowermost position. thereupon first the .upper and then the lower part ofits guide bar m or vice versa is moved by means of the handle p from the. guide groove in the sash, so that now the latter may swing freely. When'the sash is to be secured against swinging out its guide bar on need only be returned in the corresponding manner into the guide groove of the sash.

With the combined hinge and guide straps according to' Fig. 4 the shorter side 71. is of a plain semi-circular section and with its,

circular central part concentric to the same and the other guide bar 6 is secured with its one flange i to the longer side h of the rail, the guideslot for the hinge strap 7: being maintained, whereas the flange 2' according vantage that the so-called hard-ware required for the same can be supplied to window-sash factories and there made up into sashes in a quick and economical manner.

We claim: 1. In a sliding and turning window-sash, the combination, with the sash and side-bar of' the window-frame, of a hinge-strap attached to the sash and formed of partlystraight and partly curved portions, combined guideand hinge-bars secured in corresponding recesses of the side-bar, the front one of said guide and hinge-bars consisting of a metallic bar of angular cross-section and unequal sides, secured by its longer side to the front of the side-bar and terminating at its shorter side in a circular bead, and of a metallic rear-bar having a center ortion in the form of a quadrant concentric with the bead on the front-bar and provided at each end of said quadrantal portion and at right angles thereto with flanges, of which one projects across said center portion and is attached to the side-bar of the windowframe, while the other is secured to the longer side of the front-guide bar, the frontedge of the side-flange forming with the beadof frontjguide-bar a narrow slot for guiding the sash hinge-strap.

2. In a sliding and turninglwindow-sash, the combination, with the sas and side-bar of the window-frame, of a hinge-strap attached to the sash and formed of a metallic bar of unequal sides, the longer of which is attached to the side of the sash, and the shorter of which is bent up at one end into a straight portion at right angles to thelonger side and into a thickened curved portion, combined guide and hinge-bars secured in corresponding recesses of the side-bar,

the front one of said guide and hinge-bars consisting of -a metallic bar of angular cross-section and unequal sides, secured by its longer side to the front of the side-bar and terminating at its shorter side in a circular bead, and of a metallic rear-bar having a center portion in the form of a quadrant concentric with the bead on the front-bar and provided at each end of said quadrantal portion and at right angles thereto with flanges, of which one projects across sald center portion and is attached to the sidebar-of the window-frame, while the other is secured to the longer side of the frontuide In testimony whereof we afix our signabar, the front-edge of the side-flange orm- .tures in presence of two witnesses.

ing with the bead of front guide-bar a nar- CARL STfiRMANN [L 8] row slot for guiding the sash hinge-strap, the curved portion of the sash hinge-strap ALEXANDER being concentric with the head of the front Witnesses:

guide-strap and the quadrantal portion of CHAS. J. WRIGHT,

the inner or rear guide-strap. ALFRED HENKEL. 

